Alert archive / Oklahoma / Flash Flood Warnings in 1990

Flash Flood Warning 34, NWS Tulsa, OK

June 21, 1990Craig County, Rogers County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Jun 21, 1990, 5:50 PM CDT for Craig County, Rogers County, Oklahoma. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jun 21, 1990, 5:50 PM CDT (22:50 UTC)
Expired: Jun 21, 1990, 8:45 PM CDT
In force: 3 hr
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties Craig County, OK, Rogers County, OK

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Springfield, MO (KUMN), launched 12:00Z, 10.8 hours before the alert went out and 148 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2230 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 41 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KTUL 212251
FFWTUL
OKC035-131-220145-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
550 PM CDT THU JUN 21 1990
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  845 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES ...
 
IN NORTHEAST OKLAHOMA
 
   ...SOUTHERN CRAIG COUNTY...NORTHEASTERN ROGERS COUNTY
 
RADAR AND SATELLITE ESTIMATES SHOW ALMOST 4 INCHES OF RAIN HAVE FALLEN
OVER PARTS OF NORTHEAST ROGERS AND SOUTHERN CRAIG COUNTIES. WATER ONE 
TWO FEET DEEP IS RUNNING OVER PARTS OF HIGHWAY 66...BETWEEN CHELSEA
AND WHITE OAK. MOTORISTS USING THIS HIGHWAY TONIGHT SHOULD USE EXTREME
CAUTION...AND SHOULD PLAN AN ALTERNATE ROUTE AROUND HIGHWAY 66.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS LIKELY OR HAS BEEN
REPORTED.  STAY ALERT AND WATCH FOR RAPIDLY RISING WATER.
REMEMBER...IT'S IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO THE
NEAREST STREAM...CREEK OR RIVER WHICH CAN BECOME A KILLER DURING
PERIODS OF HEAVY RAIN.
 
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT DRIVE YOUR
VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY.  THE WATER
MAY BE TOO DEEP TO ALLOW YOUR CAR TO CROSS SAFELY.  IF YOUR
VEHICLE GE&TS CAUGHT IN RISING WATER...ABANDONED IT QUICKLY.  THEN
MOVE TO HIGHER GROUND.
 
KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 21, 2:40 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Washington	50 min
Jun 21, 3:13 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Rogers	47 min
Jun 21, 3:32 PM CDT	Severe Thunderstorm Warning	TSA	Osage	43 min
Jun 21, 3:55 PM CDT	Tornado Warning	TSA	Craig	50 min
Jun 21, 4:07 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Rogers	53 min
Jun 21, 4:57 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes	48 min
Jun 21, 5:22 PM CDT	Severe Thunderstorm Warning	TSA	Rogers	53 min
Jun 21, 6:14 PM CDT	Severe Thunderstorm Warning	TSA	Osage	46 min
Jun 21, 6:28 PM CDT	Tornado Warning	TSA	Osage	47 min
Jun 21, 6:35 PM CDT	Severe Thunderstorm Warning	TSA	Adair	40 min

Nearby

Flash Flood Warnings in Oklahoma, 1990 Every flash flood warning in 1990

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.